singapore v0.9.11 cross site scripting and path disclosure

[thegreatone2176 () yahoo com]

Because of singapores heavy use of classes it has multiple path disclosure occurences. The following pages all produced 
class related errors when navigating directly to them in your browser.

gallery/includes/admin.class.php
templates/admin_default/ all the .tpl.php files
templates/default/ all the the .tpl.php files

Also the gallery $_GET parameter on www.site.com/index.php is not properly checked leading to cross site scripting.  We 
used 
http://www.site.com/index.php?gallery=%3Cimg%20onmouseover=%22alert('hi')%22%20style=%22position:%20absolute;%20top:0px;%20left:%200px;%20width:%201000%;%20height:%201000%;%22%3E
and other similar scripts to produce the xss.